Side taping machine



Oct. 4, 1932.

c. CHRISTIANSEN 1,880,804

SIDE TAPING MACHINE Filed June 28. 1928 s sheets-sheet 1 Zizveniar:

u ttarn eys.

1932- c. CHRISTIANSEN 1,880,804

SIDE TAPING MACHINE Filed June 28, 1928 3 Sheets-Sheet 2 In ventor: 3! ITJ W, W$m

Oct. 4, 1932. c. CHRISTIANSEN SIDE TAPING MACHINE Filed June 28, 1928 3Sheets-Sheet 3 Jnventar ctorneys.

F work.

Patented Got. 4, 1932 AENT Fries CHRISTIAN QEIR-ISJIANSEN, OF LYNN,MASSACHUSETTS, ASSIGNORTO ROTARY MA- CHINE COMPANY, GF LYNN,MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS SIDE TAPING MACHINEApplication filed June 28,

l his invention relates to machines for applying adhesive tape to theside portions of shoe uppers.

Considerable force or pull must be applied to the end of adhesive tapein order to remove a strip of the tape from the roll. If the adhesivetape is removed from the roll by the pull offered by feed r lls whenapplying the tape to the work, considerable tension is placed upon thetape causing it to stretch. As a result, when the work is removed fromthe machine there is a tendency for the tape to assume its normalcondition free of tension thereby causing wrinkles and buckling of theIt is diiiicult if not impossible to remove such wrinkles from shoeuppers wien they are formed.

It is an object of the present invention to provide a machine of thisgeneral type which is ad pted to apply the tape to the worksubstantially free from tension and thereby overcome these difliculties.

It is a further object of the invention to provide a machine of thistype which is arranged with a taoe cutting device adapted to sever thetape accurately at the edge of the work and thereby render subsequenttrimming unnecessary.

In a machine embodying the invention the tape may be applied to the workWhile the latter is being fed between cooperating feed members of anyusual construction. In accordance with one feature of the invention thetape is removed from the roll of adhesive tape by a special deviceinterposed between the roll of adhesive tape and the cooperating feedmembers which may comprise a movable member adapted to engage relativelysmall spaced areas upon the tape. This device is driven in unison withthe feed members but is so constructed and arranged that tape is notremoved from the roll unless the free end of tape is held slightly. Inaccordance with the preferred construction, cooperatingrolls areprovided for applying the tape while the work is being fed therebetweenand one is so mounted that it may move toward and away from the other. Aknife retainer is provided which may be moved substantially to theregion of contact of the feed rolls when the 1928. Serial No. 289,016.

latter are separated. The knife retainer is provided with a knifemovably mounted therein for severing the tape at the edge of the work,the tape being held against projections upon the retainer during thecutting operation to prevent lateral movement there- Before explainingin detail the present invention and the method or mode of operationembodied therein, it is to be understood that the invention is notlimited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings, since theinvention is capable of other embodiments and of being practiced orcarried out in various ways. Also it is to be understood that thephraseology or terminology employed herein is for the purpose ofdescription and not of limitation, and it is not intended to limit theinvention beyond the terms of the several claims hereto appended or therequirements of the prior art.

The invention will be more clearly understood from the followingdescription in conjunction with the accompanying drawings; in which: i

Fig. 1 is a front elevational view of a portion of a machine embodyingthe invention;

Fig. 2 is a side elevational view of the same;

Fig. .3 is a side elevational view of aportion of the machine showingthe relation of the parts when the work feed members. are separated;

Fig. i is a front elevational view of the mechanism shown in Fig. 3;

Fig. 5 is a detail plan view of a portion of the tape guide member, andFig. 6 is a detail view of the work after the tape has been appliedthereto.

The machine illustrated in the drawings comprises a frame 10 having anoverhanging frame arm or projection 11 which is bored toreceive a shaft12 for rotation therein. A

.work feed roll 14 is mounted upon the outer end of the shaft 12 and hasa gear 15 secured to its outer face, as by screws 16. bracket 17 is adjustably mounted upon the projection 11, as by set screws 18, and isprovided at its free end with a stud 19 for rotatably supporting a rollof adhesive tape. The rotation of the roll 20 upon the stud 19 may beresisted by a suitable tension device comprising a spider having a hub21 adjustably mounted on the shaft 19 and provided with radial arms 21a:bearing against springs 215.

A bracket 25 is adjustably mounted upon the projection 11 adjacent theroll 14 and for this purpose is provided with a split bearing 26 whichis clamped upon the projection 11 by'screws 27. Shafts 28 and 29 arerotatably mounted in suitable bearings in the bracket 25 and areprovided with paddle wheels 30 iand 3l respectively having radiallyextending blades 24." Suitable lIltQ-llllEShiP ears 32 and 33 aremounted upon the shafts 28 and 29, respectively. A shaft 35 is alsomounted for rotation in suitable hearings in the bracket 25 and isprovided with a suitable gear 36 adapted to mesh with the gear 32 and apinion 37 adapted to mesh with the gear 15. The paddle wheels 30 and 31are so arranged that the tape may pass therebetween with the blades 24thereon alternately engaging and feeding relatively small spaced areasof the tape. Preferably, the edge 38 of each blade 24 is concaved tocenter the tape therein as shown in Fig. 4.

A rock shaft 41 is mounted for rotation in suitable bearings in theframe 10 and has a bracket or arm 42 secured upon its outer end as by apin 43. The outer end of the arm 42 is offset inwardly to provide acrank 42a terminating in a hub 45 adapted to receive a shaft 46 forrotation therein. The outer end of the shaft 46 is provided with asuitable feed member, such as a roll 47, and its inner end is connectedby a universal connection 48 with a shaft 49 mounted for rotation insuitable bearings in the frame 10. The shafts 12 and 49, through themedium of which the upper and lower feeding and tape applying rolls 14and 47 are. driven, are driven by mechanism at the rear of the machine,preferably in the manner shown and described in my companion applicationSerial No. 289,017, filed June 28, 1928. The rock shaft 41 is rocked soas to swing the crank arm 42a preferably by mechanism similar to thatmore fully shown in the above application. This mechanism comprises adepending wedge shaped arm 100 fixed to the rock shaft 41 at the rear ofthe machine. Beneath this arm is a stud 101 secured in the frame andcarrying a swinging lever 102. The latter is provided with a cam 103cooperating with the tapered arm 100. The arm 100 and lever 102 areconnected by a spring 104, and secured at 105 to'the outer end of thelever 102 is a rod 106 connected at its lower end to a suitable floortreadle.

When the treadle rod 106 is depressed the lever 102 will beswungdownwardly thereby swinging the arm 100 outwardly through the springconnection, the arm riding up on the cam 103. This operation results inrocking the shaft 41 thereby swinging the crank 42a downwardly in thedirection of the arrow and depressing the feed roll 47 which ispermitted through the universal connection 48 as shown in Fig. 4.

Secured to the rock shaft 41 by set screws 51 is an upwardly extendingarm carrying a forwardly extending rod 52. Journalled on the framemember 11 is a rock arm 55 having at its lower or outer end a splitbearing 56 adapted to receive a sleeve or knife retainer 57 which issecured therein by set screws 58. The rock arm 55 is provided with anarcuate cam slot 73 within which is located a cam roll 74 journalled onthe end of the rod 52. It will be seen that when the rock shaft 41 isrocked to depress the roll 47 the arm 50 will be swung at the same timeresulting in rocking the arm 55 by virtue of the cam roll and slotconnection 74, 73.

The outer end of the tubular sleeve 57 is provided with a slot 59adapted to receive a circular cutter or knife 60 mounted upon one end ofa cylindrical cutter bar or rod 61 extending through the sleeve 57 andadapted to be reciprocated therein. The portion of the sleeve 57adjacent one of the lower edges of the slot 59 is provided withrelatively sharp projections or teeth 63 adapted to engage and hold thetape when the knife is shifted to sever the tape. The cutter bar 61 isnormally held in retracted position by a spring 65 within the sleeve 57interposed between shoulders 66 and 67 upon the sleeve 57 and bar 61respectively. A knife operating handle 68 provided with a finger piece68a is pivotally mounted by means of a lost motion connection within aslot 69 formed in the end of the rod 61 and extends therethrough. Oneend of the handle 68 is pivotallymounted, as by a pin 71, upon the freeend of a bracket 7 2 fixed to the sleeve 57.

A tape guide is mounted-in a slot 75 in the bracket 25 and comprisesrelatively adjustable members 76 and 77 having offset guide fingers 78and 79 depending therefrom. The member 77 is secured in fixed positionwithin the slot 75 by a set screw 80 engaging a threaded opening in thebracket 25 and extending into the slot 75. An adjusting screw 85 isswivelled in an ear 86 upon one end of the member 77 and is providedwith a threaded portion 87 adapted to engage a tapped hole in an ear 89upon the member 76. The adjusting screw 85 may be turned. in order tospace the guides different distances apart to accommodate differentwidths of tape. The bracket 25 carries a projecting work guide 90 whichis in the form of a spring plunger acting against a spring 90a (Fig. 2)and adapted to project below the upper edgevof the feed roll 47 alongthe face thereof so as to guide and aline the edge of the work whenapplying a line of tape along the edge of the leather, as at T in Fig.6. When the tape is being applied along a line spaced from the edgeofthe leather, as at T in Fig. 6, the plunger will be forced upwardlyagainst the springs and will bear against the marginal edge portion ofthe leather. 7

In operation the tape is removed from the roll 20 and threadedbetweenthe inclined converging edges of the blades 24 upon the cooperatingpaddle wheels 30 and 31 and thence downwardly between the tape guidefingers 78 and 79 into the throat between the feed rolls 1d and 47. Thedriving mechanism for the feed roll shafts 12 and 49 is then connectedup causing the rotation of the paddle wheels 30 and 31 in unison withand preferably at a slightly greater speed than the feed rolls 14 and47. If it is desired to apply the tape at the edge of the work W, asshown at T in Fig. 6, the latter is guided to the throat between thefeed rolls by the guide 90. However, if it is desired to apply the tapeto an intermediate portion of the work, as shown at T, Fig. 6, the guide90 may be pushed up against the spring 9011 so as to rest against theface of the leather. As the work vV is fed between the rolls the tape isapplied thereto by the pressure of the rolls substantially free fromtension, the rolls serving merely to feed and apply the tape supplied bythe feed paddles 30 and 31, and to hold the tape at one point so thatthe edges of'the blades 24 will not move relatively to the tape. Thepaddle wheels 80 and 31 rotate to bring the edges of the blades 24 intocontact with relatively small spaced areas of the tape and therebyremove the latter from the roll 20. The. tape is centered upon theengaging edges of the blades '24, by the concave surface thereof. Whenthe tape has been applied to the full length of the work the feed rollt? is depressed by the treadle operated mechanism to permit removal ofthe work WV.

As above described, when the lower roll a7 is depressed the lever 50will be swung forwardly, swinging the rock arm and bringing the knifeholder 57 into the region of contact between the feed rolls, as shown inFig. 3. The operator then grasps the taped work W with his left hand andpulls it outwardly so as to force or press the tape, at the edge of thework, firmly against the teeth 63 causing them to bite into the tape.The operator then pushes the finger piece 68a with his right hand towardthe left in Fig. 4, sliding the cutter bar 61 forwardly and causing thecutter to sever the tape adjacent the line of teeth 63, the latterholding the tape While the cutter is operating. The cutter is retractedby the spring 65.

It will be observed that the invention enables the tape to beremovedfrom the tape reel and delivered and applied to the work substantiallyfree from tension. In the embodiment illustrated, the blades 24 are soconstructed and arranged as to center the tape thereon. The blades 24will operate to pull off the tape from the reel only when the tape isbeing fed out by the rolls 14; and 47 so as to take up the slack betweenthe wheel 31 and feed rolls. hen the rolls 1% and 47 are separated andthe length of tape beyond the reel-31 is loose, thetape will not bepulled off by the blades. The feed rolls therefore act to hold the freeend of the tape so as to permit the tape to, engage the edges of blades24. When the tape has been applied to the work,

the severing knife is moved into the region ofcontact between the feedmembers so that it may be operated to sever the tape at the edge of thework and thus make subsequent trimming unnecessary.

It will be noted that the toothed edge 63 of the member 57 acts to gripthe tape While the cutter blade moves transversely to the tape to severit. The cutter acts from the back of the tape, on the non-adhesive facethereof, so that the edge of the blade will not become gummed or coatedwith adhesive during use. Furthermore the relation of the cutting edgeto the gripping edge 63 is such that the cutter will only cut to a depthcorresponding to the thickness of the tape, so that the tape may besevered at any point on the face of the leather without cutting theleather.

I claim:

1. In a machine for applying adhesive tape to a piece of work, thecombination of means for applying the tape to the work, means forrotatably supporting a roll of adhesive tape, and a pair of rotatabledevices having projecting members alternately engaging opposite sides ofthe tape at spaced points for pulling off the tape from the roll.

2. In a machine for applying adhesive tape to a piece of work, thecombination of means for applying the tape to the work, means forrotatably supporting a roll of adhesive tape, and a pair of rotarydevices having intermeshing blades for pulling off the tape from theroll.

3. In a machine of the class described, the

combination of a pair of taping rolls for applying tape to the work,means for rotatably supporting a roll of adhesive tape, and a pair ofrotary devices having intermeshing proj ections for pulling off the tapefrom the tape roll.

4. In a machine of the class described, the combination of a pair oftaping rolls for applying tape to the work, means for rotatablysupporting a roll of adhesive tape, a pair of rotary devices havingintermeshing projections for pulling off the tape from the tape roll andmeans for rotating said device from said taping rolls.

5. In a machine for applying adhesive tape, the combination ofcooperating members for feeding work and applying tape thereto, meansfor rotatably mounting a roll of adhesive tape, and cooperatingseparately driven members interposed between said roll and feed membersadapted to engage simultaneously spaced relatively small areas onopposite sides of said tape for pulling off the tape from the roll.

6. In a machine for applying adhesive tape, the combination ofcooperating members for feeding work and applying tape thereto, meansfor rotatablymountinga roll of adhesive tape, and cooperating movabledevices interposed between said roll and feed members adapted to engagesuccessive spaced relatively small areas on opposite sides of said tapeto pull off the tape from the roll, said devices each having a concavetape engaging edge for centering the tape.

7. In a machine for applying adhesive tape to the side portions of ashoe upper, the combination of means for rotatably mounting a roll ofadhesive tape, a series of revoluble blades adapted to engage relativelysmall spaced areas on opposite sides of the tape to remove the same fromsaid roll, and means for holding said tape, to prevent movement thereofrelative to said blades when said tape is being applied to the work.

8. In a machine for applying adhesive tape to the side portions of ashoe upper, the combination of means for rotatably mounting a roll ofadhesive tape, cooperating revoluble blades adapted toengage relativelysmall spaced areas on opposite sides of the tape to remove the same fromsaid roll, and means for holding said tape to prevent movement thereofrelative to said blades when said tape is being applied to the work,each of said blades having a concave tape engaging edge.

9. In a machine for applying adhesive tape to the side portions of ashoe upper, the combination of cooperating members for feeding work andapplying tape thereto, means for rotatively mounting a roll ofadhesivetape,

' means for moving one of said members into and out of operativerelation with the other, and a movable member interposed between saidroll and feed members adapted to engage relatively small spaced areas ofthe tape to remove the same from said roll when said feed members are inoperative relation.

10. In a machine for applying adhesive tape to the side portions of ashoe upper, the combination of cooperating members for feeding work andapplying tape thereto, one of said members being movable towards andaway from the other, a movable knife retainer, a knife movably mountedin said retainer, and means for moving said retainer substantially tothe region of contact between said members when said members areseparated.

11. In a machine for applying adhesive tape to the side portions of ashoe upper, the combination of cooperating members for feeding work andapplying tape thereto, means for rotatably mounting a roll of adhesivetape, means for removing tape from said roll and permitting the same topass between said cooperating members substantially free from tension, aknife retainer having projections adapted to engage said tape andprevent lateral movement thereof, and a knife movable in said retainerto cut said tape.

12. In a machine for applying adhesive tape to the side portions of ashoe upper, the combination of cooperating members for feeding work andapplying tape thereto, one of said members bein movable towards and awayfrom the other, means for rotatably mounting a roll of adhesive tape,means for removing tape from said roll and permitting the same to passbetween said cooperating members substantially free from tension, amovable knife retainer, a knife movably mounted in said retainer, andmeans for moving said retainer substantially to the region of contactbetween said members when one of said members is moved away from theother. 7 I

13. In a machine for applying adhesive tape to the side portions of ashoe upper, the combination of cooperating members for feeding work andapplying tape thereto, one of said members being movable towards andaway from the other, means for rotatably mounting a roll of adhesivetape, means for removing tape from said roll and permitting the same topass between said cooperating members substantially free from tension, amovable knife retainer having projections adapted to engage said tape, aknife mov ably mounted in said retainer, and means for moving saidretainer substantially to the region of contact between said memberswhen one of said members is moved away from the other.

14. In a machine for applying adhesive tape to the side portions'of ashoe upper, the combination of cooperating members for feeding work andapplying tape thereto, one of said members being movable towards andaway from the other, means for rotatably mounting a roll of adhesivetape, cooperating revoluble blades adapted to engage relatively smallspaced areas on opposite sides of the tape to remove the same from saidroll, a movable knife retainer, a knife movably mounted in saidretainer, and means for moving said retainer substantially to the regionofcontact' between said members when one of said members is moved awayfrom the other. I

15'. In a machine for applying adhesive tape to the side portions of ashoe upper, the combination of cooperating members for feeding work andapplying tape thereto, one of said members being movable towards andaway from the other, means for rotatably mounting a roll of adhesivetape, cooperating revoluble blades adapted to engage relatively smallspaced areas on opposite sides of the tape to remove the same from saidroll, a movable knife retainer having projections adapted to engage saidtape, a knife movably mounted in said retainer, and means for movingsaid retainer substantially to the region of contact between saidmembers when one of said members is moved away from the other. I

16. In a taping machine, the combination of upper and lower rolls forfeeding the stock and applying tape thereto, means for feeding tapebetween the rolls, a tape cutter support, a cutter carried thereby,means for depressing said lower roll and for moving said outter supportinto cutting position, and means for operating said cutter.

17. In a taping machine, a rotatable support for a roll of adhesivetape, upper and lower members for feeding the stock and applying thetape thereto, a tape pull off device interposed between said support andmembers comprising movable blades alternately engaging opposite sides ofthe tape, and means for depressing said lower member and rendering saiddevice inoperative.

18. In a taping machine a device for pulling off adhesive tape from aroll, comprising a pair of rotary wheels having spaced projectionsintermeshing and alternately engaging the tape at spaced points onopposite sides of the tape, and means for rotating said wheels.

In testimony whereof I my signature.

CHRISTIAN CHRISTIANSEN.

